Random
Speed and Velocity
Graphing Motion
Forces
Newton's Laws
100
How can you determine that an object is in motion?
Reference point
100
What is speed?
Speed is a relationship of distance divided by time.
100
What does this graph show?
constant speed
100
For an object to move a __________ must be applied.
Unbalanced Force
100
A child decides to show his parents a magic trick by "yanking" a table cloth out from underneath the dishes on the table. Some of the objects stay on the table and some fall off the table. Identify which of Newton's laws would apply to the objects that remained on the table and why the objects may have remained on the table.
Newton's First Law (Inertia) - and the objects with the greater mass probably remained because objects with a greater mass have more inertia.
200
If you have a net force of 0 N, the forces are __________?
Balanced
200
What is average speed?
Average speed is the total distance divided by the total time.
200
Which graph shows constant speed?
G
200
What is the net force and what direction will the box move?
2 N to the right
200
A student is jumping on a trampoline. The downward force causes the student to be propelled upward. This is an example of which of Newton's Laws?
Newton's Third Law - Action/Reaction Pairs
300
What is inertia?
The resistance of an object to change its state of motion
300
Suppose a cyclist travels 30 Km in 2 hours. What is the cyclist speed?
15 km/h
300
Which runner stopped for a break?
C
300
What is a force?
A push or a pull
300
A student running down the hall turns the corner and collides with his principal. The principal is falls to the ground due to the collision. This is an example of which of Newton's Laws.
Newton's second law of motion - Net force = mass x acceleration
400
What was Mrs. Russo's maiden name?
Healey
400
When you know both the speed and direction of an object's motion, you know the objects ___________?
Velocity
400
How are segments B-C and D-E different?
In segment B-C, they are traveling at a constant speed and during segment D-E, they are stopped.
400
If student A and student B push a box in the same direction. Explain the forces involved.
A net force is applied which is a combonation of both student's forces.
400
Which of Newton's laws does this picture best demonstrate?
Newton's Third Law of Motion (Action/Reaction)
500
What is Mrs. Russo's dog's name?
Murphy
500
What was the car's average speed for the entire trip?
12 km/h
500
What is happening in this graph?
deceleration
500
Why do cars have a "crumple zone" at the front of the car? (your answer must relate to force)
So that the front of the car can absorb the impact of the forces from a head-on collision instead of it affecting the passengers or driver.
500
Which of Newton's Laws does the image best demonstrate?
Newton's First Law of Motion (Inertia)